Bastantes estudios previos han mostrado que la elevación de los niveles del citado aminoácido se asocian a un mayor riesgo cardíaco y cerebrovascular, por lo que puede constituir un marcador de ese riesgo elevado. Algunos estudios indican que puede dañar los vasos sanguíneos y predisponer a los individuos a que se formen placas de ateroma y trombos en las arterias.
En el nuevo estudio, los autores, de la Universidad de Tel Aviv (Israel), revisaron los datos de 80 pacientes con cardiopatía isquémica que experimentaron ictus isquémicos durante un período de seguimiento de 8 años. La edad media era de 61 años y el 95% eran varones. Estos pacientes fueron comparados con 80 controles.
En los resultados se comprobó que los pacientes que habían experimentado un ictus presentaban superiores niveles de homocisteína (16,4 umol/l) que los del grupo control (14,3 umol/l). Además, dos tercios de los que experimentaron el episodio cerebrovascular presentaban niveles del aminoácido más elevados que sus controles correspondientes por edad, sexo y uso de terapia hipolipemiante.
Webs Relacionadas
Tel Aviv University
http://www.tau.ac.il/
Stroke
http://stroke.ahajournals.org/
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